Employees who are not ordinarily resident or not resident in the
United Kingdom are chargeable to income tax under Sections 15 (or
Section 25 before 6 April 2008) and 27 respectively on general
earnings in respect of duties performed in the United Kingdom.
Where all of the duties are performed here calculation is not
difficult but where duties are performed partly in the United
Kingdom and partly overseas, time apportionment is generally used.
See
EIM40304. For detailed guidance about
calculating earnings in respect of UK duties, Appendix 2 at
EIM77020 contains an adapted version of
an article that appeared in Tax Bulletin 63 (February 2003).
To calculate the amount of the general earnings in respect
of duties performed in the United Kingdom:
Where the same amount of salary is paid throughout the year, the
general earnings to be attributed to United Kingdom duties can be
calculated in this way. Accept computations on this basis unless it
seems likely that the rate of remuneration changed during the year
and the amount involved is worthwhile. If there is more than one
employment deal with each one separately.
See example
EIM40222.
The employment pages of the SA Return use a different approach to produce a computation of liability under Section 15 or Section 27.
See Appendix 4 at EIM77040 for guidance on how to calculate earnings in respect of UK duties of tax equalised employees who are not ordinarily resident in the UK.